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CONSTRUCTION AND MATERIALS RESEARCH LABORATORY SECTION CONSTRUCTION TESTING LABORATORY Acredited by Polish Acreditation Centre Acreditation Certificate No. 792
RESEARCH REPORT Durability static test of a gyrocopter hub bar
Report No: LM1/RPT/Gyrotech/01/18 Number of pages: 10
Research conducted by: Laboratory Section Manager:
……………………………… ……………………………… mgr inż. Janusz Wlazło dr inż. Krzysztof Kawalec
Authorized by:
………………………… mgr inż. Janusz Wlazło
Warsaw, February 2018
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SUBJECT OF TESTING: static durability RESEARCH FACILITY: gyrocopter hub bar type GT/HB/AL2017 TYPE OF WORK: testing PRINCIPAL: Gyro-Tech sp. z o.o. REPORT CONTAINS: 10 pages DATE OF START / END: 13 February 2018 / 13 February 2018 SYMBOLS OF WORK RELATED: see page 10 KEYWORDS: gyrocopter, blades, hub bar, static tests, durability FILE: LM1_RPT_Gyrotech_01_18
The report was prepared by: Performers:
…………………………….. Robert Klewicki mgr inż. Janusz Wlazło Mirosław Kozera Janusz Wlazło
Verified by:
…………………………… mgr inż. Janusz Wlazło
THE RESULTS PRESENTED IN THIS REPORT APPLY ONLY TO THE TESTED OBJECT
THE LABORATORY DOES NOT MAKE AVAILABLE TESTS RESULTS WITHOUT PERMISSION OF THE CUSTOMER
SUMMARY The report contains description of implementation, progress and results of tests of a gyrocopter hub bar.
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Distribution: Copy 1 – Gyro-Tech sp. z o.o. Copy 2 – ILOT CBMS/LM1
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Table of contents page
1. Introduction 5 2. The object of the study 5 3. Aim of the study 5 4. Procedure used 5 5. Testing station 5 6. Measuring and testing facilities, uncertainty of measurement 6 7. Test course and results 6 8. References 10
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1. Introduction
The studies have been carried out in the framework of the order placed by Gyro-Tech Innovation in Aviation Sp. z o.o. company.
2. Object of the study
The object of the study was a set of hub bar for gyrocopter blades, type GT/HB/AL2017. Elements for implementing loads were designed and made by the Principal.
Pic 1. Hub bar type GT/HB/AL2017
3. Aim of the study
The aim of the study was to determine the static durability of the testing object and to provide a set of measurement data for further durability analyses.
4. Procedure used
- Testing procedure JPB.03 / LM1 [1]
5. Testing station
The tests were carried out on the AVIATA durability frame equipped with suitable facilities, allowing adding required loads to the tested element.
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6. Measuring and testing facilities, uncertainty of measurement
The load in the test was carried out by using electro-hydraulic cylinder which is part of the AVIATA durability frame along with a controller in the following completion: - hydraulic cylinder R-580-150 - MTS 407/01 Controller S / N M402246L
The force, displacement and deformation were recorded by using a measuring system "System 5000" from Vishay MicroMeasurement equipped with appropriate analog-digital cards.
Calibration of measuring channels contain protocols [2], [3], [4].
Force measurement
For measurement and control was used a force transducer 1232-450kN/01 along with amplifier MTS 407.12 DC Conditioner S/N 1467366F (part of the controller MTS 407).
Estimated Determination of System Card Converter Range Amplifier measurement measuring point 5000 Card Channel uncertainty *) 407.12 DC 1232- 450 F Conditioner HL5130/04 2 +/- 0.3 kN 450kN/01 kN 1467366F *) Expanded uncertainty (with a confidence level of p = 95%)
Displacement measurement
The resulting displacement of the cylinder piston loading of the AVIATA machine was measured by LVDT transducer integrally built in the cylinder.
Estimated Determination of System Card Converter Range Amplifier measurement measuring point 5000 Card Channel uncertainty *) 407.14B AC 150 F R-580-150 Conditioner HL5130/04 1 +/- 0.4 mm mm 0423852D *) Expanded uncertainty (with a confidence level of p = 95%)
7. Test course and results
Before carrying out the test, a representative of the Principal confirmed the compliance of the tested object with the documentation. The representative of the Principal was present during the tests. It was agreed with the Principal that the load will be proceeded with a fixed elongation speed: 2 mm / min.
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During execution of the test, measured were: the loading force and displacement of the cylinder piston.
The test was carried out on 13.02.2018 [5].
Hub bar – GT/HB/AL2017
Pic. 2 Hub bar mounted on the testing station
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The course of force against displacement is presented in the chart – Fig. 1, while the form of destruction is presented in Pic.3 and 4. The maximum recorded load (destructive power): 403.5 kN. Form of destruction: shear of bolts at connection implementing the load.
Destructive attempt of hub bar 1 13.02.2018
Fig. 1. The load course.
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Pic. 3. Destroyed bolts connection in the hub bar
Pic. 4. Destroyed bolts connection in the hub bar
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8. References
[1] J. Wlazło, Static and quasi-static research on complete mechanical constructions, their assemblies or components or construction parts. Research Procedure No JPB.03 / LM1; Ilot, Warsaw 18.10.2010
[2] Minutes of force measuring channel calibration: force transducer Interface, model 1232ACK- 450kN-B amplifier 407.12 Conditioner DC controller MTS 407/01, GUM No. M3- M33.4180.246.2016.4700.1; Warsaw 06.12.2016
[3] Minutes of displacement track calibration of the AVIATA hydraulic machine cylinder, No. WPB/PRT/03/18; Warsaw 09.02.2018
[4] Minutes of verification of measurement cards High Level Model 5130B System 5000 No WPB/PRT/16/17; Warsaw 24.04.2017
[5] Research Work Card LM1/KPB/02/18
- END OF REPORT –